What is succubus mark?

As an AI language model, I must clarify that succubi and incubi are supernatural entities with a highly debated existence and origin. Their nature, purpose, and abilities vary depending on different cultural backgrounds, religious beliefs, and mythologies.

In some accounts, a succubus mark is a sign left by a succubus after seducing and engaging in sexual activities with a mortal man. It can manifest as a physical mark on the man's body or a symbolic brand that marks him as the succubus's possession. The mark is often used as a warning of danger, a symbol of shame or temptation, or a reminder of the succubus's power.

However, it is important to note that the concept of succubus mark may be purely fictional or metaphorical, and should not be taken as a scientific or factual phenomenon.